Oil filter relocation seal
 

I’m having trouble finding this seal. Its like a flat O ring. About 3/16 wide and hi.
Thanks in advance
https://cimg2.ibsrv.net/gimg/www.off...a685bfada.jpeg
https://cimg6.ibsrv.net/gimg/www.off...21e0d3d8c.jpeg
https://cimg9.ibsrv.net/gimg/www.off...46d12b586.jpeg

What are the inside and outside diameters?

It should be the same as the gasket that comes on the (stock size) oil filter.

What engine ? Maybe #8 in the attached:
https://www.marineengine.com/parts/m...100JS/1939_280

get a veneer caliper and get some better measurements of the groove on the adapter. My guess just looking at the pic is you are somewhere in the -334 to -342 range on the o-ring charts
i know this place has the square o-rings, im sure there are other places to get them as well....and it may be a custom size too.
Square O-rings

Its for a 502. Ill get some measurements

I just looked at the picture of your adapter again. Are you sure that is the correct gasket ? Its hard to tell for sure but yours almost looks like it is made for a round "O" Ring ? Does the oring fit into that groove in the adapter ?

Im not sure if it is correct. Its what came out. The grove is square shaped though, not a concave like an O ring

First thing I'd do is compare it to the gasket on your oil filter.
If its not the same, then I'd measure the OD and go to Walmart and find an oil filter with the same dimension gasket.

X2. ^^^
But the walmart thing.
WIX site/catalog can see gasket size (and more) on any filter you choose.

BigDawg,

I'm not suggesting that an O-ring is what you need, because I have no idea, but....

O-ring grooves are not typically "concave". Parker specs dimensions for O-ring grooves as square, or slightly tapered sides (up to 5° per side), and up to a small fillet where the sides meet the bottom. This applies to both radial and face applications. I machine O-ring grooves all the time, and I have yet to machine any that were concave. O-rings are meant to compress.

That said, I'd think a Viton O-ring of the appropriate size would serve the purpose well enough.

Carry on.

Thanks. Brad.

Griff,

Are you suggesting to remove the gasket from a purchased filter? I guess I never thought about it, but I didn't realize they could be removed. I figured they were affixed somehow.

Thanks. Brad.

They generally use an interference fit of some sort.

That’s what I did bought a oil filter with the right size gasket that I needed.I just took the old gasket and just matched up.

They actually come out fairly easily. Lots of times when I remove an oil filter, the filter gasket sticks to the filter mount.

Griff,

Hum.... I've obviously never had that happen. I learn something new every day.

Thanks. Brad.

My dad once changed the oil in his car and accidentally left the old filter seal on the housing. Was quite the mess when he started it up. Now I always check to make sure the old seal is still on the old filter

Ryan,

My dad taught me to use the oil on the old filter seal to wet the seal on the new filter before installing it. I guess I've got a default failsafe built into my process. :rolleyes: This explains why I didn't know they can come off.

Thanks. Brad.

I do that too, even though the Mobil 1 filters say you don't have to. Prob 1 out of 5, the gasket still sticks to the mount.

Griff,

I was only speaking specifically to the fact that I, in the process of lubricating the seal on the new filter, by default, I confirm there actually IS a seal on the new filter.

Thanks. Brad.